Re: mmap'ed memory cacheable or uncheable

[Jun Sun <jsun@mvista.com>]

On Thu, Jul 24, 2003 at 08:26:59PM -0700, Teresa Tao wrote:
> Hi there,
> 
> I got a question regarding the mmap'ed memory. Is the mmap'ed memory 
> cacheable or uncheable? My driver just use the remap_page_range to map a 
> reserved physical memory.
>

I am pretty much sure it is cached, although I can't pin down exactly
where in the mm subsystem it does so - I have had cache bugs related
to mmap().

Jun